The IOD 48" can be built with plank-on-frame technique using balsa wood covered with thin fiberglass. Plans in an IOD Assembly Manual are...
This model was made for Martin Gibbs of Rye, NY who owns a full scale IOD which he sails with the Fisher's Island, NY IOD fleet.
The 33' 5" IOD Class makes an ideal model sailboat if you make the keel about 3" deeper than to scale to compensate for the...